ISA code for Process Instrumentation

ISA codes for Process Instrumentation

ISA instrumentation codes and combinations

To understand instrumentation symbols appearing on process diagrams means understanding ANSI/ISAs S5.1-1984 (R 1992) Instrumentation symbols and identification standard.

Process Measurement	Element Type	Element	Transmitter	Indicator	Indicator controller	Controller	Ratio Controller	Recorder
	Code	E	T	I	IC	C	FC	R
Analysis	A	AE	AT	AI	AIC	AC	AFC	AR
Conductivity	C	CE	CT	CI	CIC	CC	CFC	CR
Density	D	DE	DT	DI	DIC	DC	DFC	DR
Voltage	E	EE	ET	EI	EIC	EC	EFC	ER
Flow	F	FE	FT	FI	FIC	FC	FFC	FR
Dimension	G	GE	GT	GI	GIC	GC	GFC	GR
Hand	H	HE	HT	HI	HIC	HC	HFC	HR
Current	I	IE	IT	II	IIC	IC	IFC	IR
Time	K	KE	KT	KI	KIC	KC	KFC	KR
Level	L	LE	LT	LI	LIC	LC	LFC	LR
Humidity	M	ME	MT	MI	MIC	MC	MFC	MR
Power	N	NE	NT	NI	NIC	NC	NFC	NR
Pressure	P	PE	PT	PI	PIC	PC	PFC	PR
Delta Pressure	dP	dPE	dPT	dPI	dPIC	dPC	dPFC	dPR
Quantity	Q	QE	QT	OI	OIC	QC	QFC	QR
Radioactivity	R	RE	RT	RI	RIC	RC	RFC	RR
Speed	S	SE	ST	SI	SIC	SC	SFC	SR
Temperature	T	TE	TT	TI	TIC	TC	TFC	TR
Delta Temperature	dT	dTE	dTT	dTI	dTIC	dTC	dTFC	dTR
Viscosity	V	VE	VT	VI	VIC	VC	VFC	VR
Weight	W	WE	WT	WI	WIC	WC	WFC	WR
Vibration	Y	YE	YT	YI	YIC	YC	YFC	YR
Position	Z	ZE	ZT	ZI	ZIC	ZC	ZFC	ZR
Process Measurement	Element Type		Hand Switch		Hand Valve	Totalizer	Indicating Totalizer		Solenoid Valve	Calculation	Control Valve
	Code		HS		HV	Q	IQ		XV	Y	V
Analysis	A		AHS		AHV	AQ	AIQ		AXV	AY	AV
Conductivity	C		CHS		CHV	CQ	CIQ		CXV	CY	CV
Density	D		DHS		DHV	DQ	DIQ		DXV	DY	DV
Voltage	E		EHS		EHV	EQ	EIQ		EXV	EY	EV
Flow	F		FHS		FHV	FQ	FIQ		FXV	FY	FV
Dimension	G		GHS		GHV	GQ	GIQ		GXV	GY	GV
Hand	H		HHS		HHV	HQ	HIQ		HXV	HY	HV
Current	I		IHS		IHV	IQ	IIQ		IXV	IY	IV
Time	K		KHS		KHV	KQ	KIQ		KXV	KY	KV
Level	L		LHS		LHV	LQ	LIQ		LXV	LY	LV
Humidity	M		MHS		MHV	MQ	MIQ		MXV	MY	MV
Power	N		NHS		NHV	NQ	NIQ		NXV	NY	NV
Pressure	P		PHS		PHV	PQ	PIQ		PXV	PY	PV
Delta Pressure	dP		dPHS		dPHV	dPQ	dPIQ		dPXV	dPY	dPV
Quantity	Q		QHS		QHV	QQ	QIQ		QXV	QY	QV
Radioactivity	R		RHS		RHV	RQ	RIQ		RXV	RY	RV
Speed	S		SHS		SHV	SQ	SIQ		SXV	SY	SV
Temperature	T		THS		THV	TQ	TIQ		TXV	TY	TV
Delta Temperature	dT		dTHS		dTHV	dTQ	dTIQ		dTXV	dTY	dTV
Viscosity	V		VHS		VHV	VQ	VIQ		VXV	VY	VV
Weight	W		WHS		WHV	WQ	WIQ		WXV	WY	WV
Vibration	Y		YHS		YHV	YQ	YIQ		YXV	YY	YV
Position	Z		ZHS		ZHV	ZQ	ZIQ		ZXV	ZY	ZV

 

Process Measurement	Element Type	Ratio Calculation	Switch Low	Switch High	Alarm Low	Alarm Low Low	Alarm High	Alarm High High
	Code	FY	SL	SH	AL	ALL	AH	AHH
Analysis	A	AFY	ASL	ASH	AAL	AALL	AAH	AAHH
Conductivity	C	CFY	CSL	CSH	CAL	CALL	CAH	CAHH
Density	D	DFY	DSL	DSH	DAL	DALL	DAH	DAHH
Voltage	E	EFY	ESL	ESH	EAL	EALL	EAH	EAHH
Flow	F	FFY	FSL	FSH	FAL	FALL	FAH	FAHH
Dimension	G	GFY	GSL	GSH	GAL	GALL	GAH	GAHH
Hand	H	HFY	HSL	HSH	HAL	HALL	HAH	HAHH
Current	I	IFY	ISL	ISH	IAL	IALL	IAH	IAHH
Time	K	KFY	KSL	KSH	KAL	KALL	KAH	KAHH
Level	L	LFY	LSL	LSH	LAL	LALL	LAH	LAHH
Humidity	M	MFY	MSL	MSH	MAL	MALL	MAH	MAHH
Power	N	NFY	NSL	NSH	NAL	NALL	NAH	NAHH
Pressure	P	PFY	PSL	PSH	PAL	PALL	PAH	PAHH
Delta Pressure	dP	dPFY	dPSL	dPSH	dPAL	dPALL	dPAH	dPAHH
Quantity	Q	QFY	QSL	QSH	QAL	QALL	QAH	QAHH
Radioactivity	R	RFY	RSL	RSH	RAL	RALL	RAH	RAHH
Speed	S	SFY	SSL	SSH	SAL	SALL	SAH	SAHH
Temperature	T	TFY	TSL	TSH	TAL	TALL	TAH	TAHH
Delta Temperature	dT	dTFY	dTSL	dTSH	dTAL	dTALL	dTAH	dTAHH
Viscosity	V	VFY	VSL	VSH	VAL	VALL	VAH	VAHH
Weight	W	WFY	WSL	WSH	WAL	WALL	WAH	WAHH
Vibration	Y	YFY	YSL	YSH	YAL	YALL	YAH	YAHH
Position	Z	ZFY	ZSL	ZSH	ZAL	ZALL	ZAH	ZAHH

* source : http://www.engineeringtoolbox.com/isa-intrumentation-codes-d_415.html

   

출처: <http://sharpwork.pe.kr/bbs/board.php?folder=&bo_table=science&page=2&bbs_id=2018>